Bryce Harper the Left Fielder

With
the acquisition of Denard Span to play center field and bat leadoff,
a new defensive home had to be found for Harper. In 2012 advanced stats didn’t
just rate Harper as a good defensive center fielder he was rated as a great
one. The Span move makes the Nats better in two positions of weakness and it
also allows Harper to move to a more offensive position and focus on that
aspect of his game. Left field is the second least important defensive position
according to the defensive matrix, and often times it is the home of some of
the games best sluggers. 

For a
quick comparison the average MLB center fielder hit .265/.330/.418 in
2012 and the average left fielder .261/.327/.431. While left field is
traditionally a more offensive position current left fielders only managed a
.009 OPS advantage over their CF brethren in 2012. This doesn’t nor
should it change the perception of left field as the less important defensive
position of the higher offensive position. All it means is that there aren’t a
lot of good left fielders right now. In WAR there are built-in bonuses for
playing different positions, a good offensive player at an up the middle
position will be rated higher than a good offensive player at a corner
position, because an up the middle player that can hit is more valuable.  

Harper in 2012 hit .270/.340/.477,
above average as for both a center and left fielder. At around .800 OPS a good
hitter is a good hitter no matter what defensive position they play, and Harper
is in that class. As good a defensive center fielder as Harper was his range
and speed should make him a better defender in left. That isn’t always the case
as it is a different read of the ball of the bat, but physical skills wise a
good defensive center fielder is an even better defensive left fielder.
Whatever positional difference bonus is lost in WAR by moving from center to
left is going to be picked up immediately because Harper will be a better
defensive left fielder. There is also the fact that Harper is going to be
measured against his peers, and he may already be one of the top five left
fielders in the game without having played a single inning.  

In some order the projected top
left fielders in baseball should be Alex Gordon, Matt Holliday, Justin Upton,
Ryan Braun, and Bryce Harper. In 2012 the five best left fielders in baseball
ranked by fWAR were Ryan Braun, Martin Prado, Alex Gordon, Matt Holliday, and
Alfonso Soriano. If we were to rank the 2012 left fielders by offense alone
then Harper’s 2012 wOBA of .352 would have him tied with Jason Kubel for 8th
best in all of baseball. Harper as a rookie and coming from a less offensive
position is already in the top third offensively for the position, but again he
is an above average enough hitter that his bat will play wherever the Nats
choose to put him on the diamond.    

As we saw earlier though when we
compared the average offense for center to left the disparity isn’t as much as
one would expect when comparing a primarily defensive position to a primarily
offensive position, and that is because there are more talented center fielders
playing right now than left fielders. Look at the list of top left fielders
from last season. There is one name that sticks out that no one would include
in their list of top players. Now look at the top five center fielders by fWAR
from 2012: Mike Trout, Andrew McCutchen, Michael Bourn, Austin Jackson, and
Bryce Harper. Those are all quality major league players and in fact Harper,
the fifth ranked left fielder, had a 4.9 fWAR compared to 4.0 for Soriano, the
fifth ranked left fielder.

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There are more talented center
fielders playing the game of baseball right now than there are left fielders.
Harper’s wOBA ranked him only one place higher as a center fielder last season
than it did as a left fielder and that is only because Matt Kemp doesn’t
qualify. If Kemp is added into the list then Harper is in the same place
offensively as a center fielder as he is as a left fielder. This is not what
one would assume to find when they look at a defensive position vs. an
offensive position. If we move to the extremes and compare a catcher to a first
baseman the average 2012 catcher hit .248/.318/.400 and the averaged first
baseman .262/.336/.442. Moving just two spots down the defensive matrix from
catcher to center fielder and just one up from first baseman to left fielder it
wouldn’t be expected that the gap would narrow that quickly.

These
surprising results aside, Bryce Harper should hit better in 2013 than he did in
2012. Many fear the sophomore slump, but by now Harper has proven not to put
expectations on him and with added muscle and private astronomical goals, the
ceiling for Bryce Harper is MVP. The floor for Harper may very well be a repeat
of his offense from 2012, but with more playing time that will lead to a higher
fWAR value. Harper as a left fielder isn’t going to be that much different than
Harper as a center fielder, and with less defensive stress and strain on the
body could be even better.

One comment

  1. Harper already had a slump last summer, so I’m hoping even if he does slump this year he will work his way out of it.

    Like

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